Indima ye-HPMC kwi-Drymix Mortars

I-Hydroxypropyl methylcellulose (HPMC) sisixhobo esisetyenziswa ngokubanzi kwi-drymix mortars. Yinto ephuma kwi-cellulose e-soluble yamanzi kwaye inamandla okwenza into efana nejeli xa ifakwe emanzini. Le propati yenza i-HPMC ibe yi-arhente egqwesileyo yokuqina kunye nokubopha, yiyo loo nto isetyenziswa kumashishini amaninzi afana nokutya, izinto zokuthambisa, kunye nokwakha.

Kwimixube eyomileyo, i-HPMC isetyenziswa njenge-rheology modifier, i-agent yokugcina amanzi, kunye ne-agent agent. Inempembelelo ebalulekileyo kumgangatho kunye nokusebenza kodaka lwe-drymix. I-HPMC idla ngokudibaniswa ngamanani amancinci, ngokuqhelekileyo i-0.1% ukuya kwi-0.5% ngobunzima bezinto ze-cementitious kwi-drymix mortar.

Omnye wemisebenzi ephambili ye-HPMC kwi-drymix mortars kukuphucula ukusebenza kodaka. Isebenza njenge-rheology modifier ngokunyusa i-viscosity yomxube, okwenza kube lula ukusebenza nayo. Oku kubaluleke kakhulu kwi-drymix mortars ezisetyenziselwa ukufaka iithayile okanye izicelo zomgangatho, apho ukuhambelana kodaka kubaluleke kakhulu ekufakeni okufanelekileyo.

Omnye umsebenzi obalulekileyo we-HPMC kwi-drymix mortars kukukwazi ukugcina amanzi. Xa ixutywe namanzi, i-HPMC yenza into efana nejeli ebamba iimolekyuli zamanzi ngaphakathi kwesakhiwo sayo. Le propati inceda ukugcina i-drymix mortar ifumile, okubalulekileyo ekunyangeni okufanelekileyo kunye nokusekwa kodaka. Kwakhona kunceda ukunciphisa ukushwabana kunye nokuqhekeka kodaka.

I-HPMC iphinda isebenze njenge-arhente yokusasaza kwi-drymix mortars. Inceda ukuqhekeza amaqhekeza amaqhekeza, okwenza kube lula ukuba badibanise ngokulinganayo kulo lonke udaka. Le propati ibaluleke kakhulu kwi-drymix mortars equkethe amacandelo amaninzi, njengesanti, i-samente, kunye neentlobo ezahlukeneyo zokudibanisa.

Ukongeza kule misebenzi iphambili, i-HPMC inokubonelela ngezinye izibonelelo kwi-drymix mortars. Ngokomzekelo, inokuphucula ukunamathela kodaka kwi-substrate, ebalulekileyo kwizicelo ezifana nokufakwa kwe-tile. Kwakhona kunokuphucula ukuguquguquka kodaka, okwenza kube lula ukukrazula kunye nokuphuka phantsi koxinzelelo.

Xa ukhetha i-HPMC ukuze isetyenziswe kwi-drymix mortars, izinto ezininzi kufuneka ziqwalaselwe. Eyona nto ibalulekileyo kwezi zinto yi-viscosity ye-HPMC. I-viscosity ye-HPMC iya kumisela inqanaba lokujiya kunye nokugcinwa kwamanzi elibonelela ngodaka. Ezinye izinto ekufuneka ziqwalaselwe ziquka i-pH ye-HPMC, i-degree of substitution (DS), kunye nobukhulu bayo bamasuntswana.

I-pH ye-HPMC ibalulekile kuba inokuchaphazela ixesha lokumisela lodaka. Ukuba i-pH iphezulu kakhulu okanye iphantsi kakhulu, inokuchaphazela ukuphendulwa kweekhemikhali okwenzeka ngexesha lokunyanga, okukhokelela kwiingxaki ezifana nokunciphisa amandla okanye ukunyuka kwenyuka.

I-DS ye-HPMC ngumlinganiselo wokuba mangaphi na amaqela e-hydroxypropyl kunye ne-methyl ancanyathiselwe kumqolo we-cellulose. I-DS ephezulu ithetha ukuba ngaphezulu kwe-hydroxypropyl kunye namaqela e-methyl akhoyo, okukhokelela kwi-HPMC enyibilikayo ngakumbi kunye ne-viscous. I-DS esezantsi ithetha ukuba i-hydroxypropyl kunye namaqela e-methyl ambalwa akhoyo, nto leyo ekhokelela kwi-HPMC encinci yokunyibilika emanzini kunye ne-viscous encinci.

Ubungakanani be-particle ye-HPMC inokuchaphazela nokusebenza kwayo kwi-drymix mortars. Ubukhulu bamasuntswana amakhulu bunokubangela ukusasazwa okungalinganiyo kwe-HPMC kulo lonke udaka, ngelixa iisayizi ezincinci zamasuntswana zinokubangela ukuhlangana kunye nokudityaniswa kwe-HPMC.

Ukuqukumbela, i-HPMC sisongezo esibalulekileyo kwi-drymix mortars. Inika uluhlu olubanzi lweenzuzo, kubandakanywa nokusebenza okuphuculweyo, ukugcinwa kwamanzi, kunye nokusabalalisa kwamaqhekeza.